WILL APPEAL THE RULING. THE GREEN BAY POLICE DEPARTMENT IS BEING THREATENED ONLINE IN RETALIATION FOR ALLEGED POLICE BRUTALITY. IT CAME IN THE FORM OF A VIDEO THAT YOU SEE HERE. ALONG WITH IT DISTURBING MASKS MUSIC AND VOICES. 12 NEWS REPORTER NICK BOHR IS LIVE IN OUR WEB CENTER.. .AND LEARNED THE GROUP MADE GOOD ON A SIMILAR THREAT IN ANOTHER CITY LAST MONTH. THIS IS A STILL FROM THAT THREAT... SINCE TAKEN DOWN... POSTED ON YOUTUBE BY A GROUP CLAIMING TO BE THE GLOBAL HACKERS 'ANONYMOUS'. ON IT, A COMPUTERIZED VOICE THREATENS THE DEPARTMENT AND AN OFFICER INVOLVED IN THE ARREST OF A CALEDONIA MAN LAST MONTH. WE SHOWED YOU THIS VIDEO LAST WEEK, A GREEN BAY OFFICER PUNCHING A SUSPECT WHILE ARRESTING HIM OUTSIDE A BAR. A VIDEO POSTED ON YOUTUBE THREATENS RETALIATION. NATS GREEN BAY POLICE DEPARTMENT, BE PREPARED FOR THE WORST ... 12 NEWS HAS CONFIRMED THE FBI IS NOW INVESTIGATING THE THREAT... AND WHAT DANGER IT MAY POSE. IT'S SIMILAR TO A THREAT ALBUQUERQUE POLICE RECEIVED LAST MONTH; DAYS LATER... THEIR WEBSITE WAS CRASHED BY HACKERS... WHO MATC IT SECURITY TEACHER MARK MILLER CALLS ATTACKERS. THEY WILL DO THINGS LIKE A DENIAL OF SERVICE ATTACK, WHICH IN THAT CASE THEY'RE USING TECHNIQUES TO TRY TO BRING DOWN A WEBSITE, SO THAT IT'S NO LONGER USEABLE OR A SERVER OR SERVICE OF SOME TYPE. NATS MILLER SAYS THE MOST CHALLENGING PART OF INTERNET SECURITY, IS TRYING TO IMAGINE WHAT THE HACKERS WILL TRY TO DO NEXT. HE CALLS ANONYMOUS ... AN EXCEPTION... BECAUSE MOST HACKERS ARE TARGETING CASH... NOT MAKING POLITICAL STATEMENTS. THAT IS THE EXCEPTION BUT THEY USE A LOT OF THE SAME TOOLS AND TACTICS AS PEOPLE DOING THIS FOR FINANCIAL REASONS. THE GREEN BAY MAYOR SAYS THE CITY IS TAKING THE THREAT FROM ANONYMOUS SERIOUSLY... BUT HE DOESN'T BELIEVE THERE ARE ANY CREDIBLE THREATS TO THE CITY'S DATA. MATC IS STAGING A CYBER ATTACK SIMULATION TOMORROW NIGHT.... DEMONSTRATING HOW TO STOP AN ATTACK. YOU CAN FIND OUT MORE ON OUR WEBSITE...